◾️ Mini 4WD Bank Checker 19mm Aluminum Rollers 13mm Aluminum Rollers Carbon FRP Lot Junk ◾️ The Bank Checker is cut from the Japan Cup Junior Circuit Bank Approach 20. ◾️ Some carbon parts have been hollowed out. ◾️ Aluminum rollers have been pressure-relieved and are loose. Please adjust the inner diameter with adhesive for use. The condition of the 520 bearings is not good. ◾️ How about for processing materials? ◾️ Will not be sold separately. ◾️ No returns or complaints accepted due to being junk items. Please purchase only if you understand.